# Presentation: 471772

## 12-ID Upgrade to Two Independent Beamlines  -  Monthly Update

**Advanced Photon Source**

***Randall Winans***
*** ******Charles Kurtz, Byeongdu Lee, Soenke Seifert***
***Chemistry, Environmental, and Polymer Science Group***
***X-ray Science Division***
***Oliver Schmidt and Soon-Hong Lee***
***Mechanical Engineering and Design***
***APS Engineering Support Division***

- May 23, 2008

## 12 - ID Upgrade to Two Beamlines with Canted Undulators

***12 - ID Upgrade to Two Beamlines with Canted Undulators***

- Versatile Anomalous and time resolved SAXS/WAXS/GISAXS/USAXS beamline [12-ID-C]
- Technically complicated experiments which takes full advantage of insertion device capabilities
- Pink beam – high flux for fast experiments
- Wide Q range 0.001 – 5.0
- Wide energy range 4.5 – 36 Kev
- Combined experiments – XANES, MS, DSC
- Surface Scattering [12-ID-D]
- MOCVD
- Diffractometer (from 12-ID-B)
- Wide energy range 4.5 – 36 Kev
- 40 cm mirror in 12-ID-C
- Dedicated  (6.9 - 13 Kev)  SAXS beamline [12-ID-B]
- Easily adjustable  Q range (0.006 – 2.0) in vacuum detector
- Rapid access
- Regular access (set aside time)

## Selection of an Undulator for 12-ID-B

***Selection of an Undulator for 12-ID-B***

**C/D  - U33S**
**B      - U30S in Sep 08**
**In one year U27**

**B**

## Slide 4

## A Hutch

**A Hutch**

## C/D Line

- Upgrade horizontal
- Mirror with bender

**C/D Line**

**A Hutch**

- The outboard x-ray beam, originating from the first insertion device will supply beam to 12-ID-C.
- Initially at an outboard trajectory of 0.5 mrad of the centerline, this beam will be deflected
- by the existing 1200 mm long mirror, located at 31.4 meters from the straight section,
- by 4mrad, to a total of 3.5 mrad inboard

|  | Before the upgrade | After the upgrade |
| --- | --- | --- |
| Diffraction type | Si(111) | Si(111) |
| Second Crystal Offset | 35 mm
 Constant offset | 20 mm 
Constant offset |
| Energy range | 4.2KeV-28 KeV | 4.5KeV-36 KeV |
| Coolant  | Liquid Nitrogen | Liquid Nitrogen or (water) |
| 1st Xtal Cooling type | Direct cooling  | Indirect cooling |
| Diffractometer  | Huber  | Huber |
| Heidenheim encoder | No | Yes |
| Motor type | Stepper motor | Stepper motor |
| Vacuum  | 2 Ion getter pumps 10 -8 Torr | 2 Ion getter pumps 10 -8 Torr |

## to the 1st crystal Compton shielding  

**A design for indirect cooling of the first crystal already **
**implemented in 20-ID is planned along with  modifications **
**to the 1st crystal Compton shielding **

## B Line

**Horizontal**
**Mirror**

**B Line**

**A Hutch**

## 12-ID-B Beamline with a large offset Monochromator

***12-ID-B Beamline with a large offset Monochromator***

- 1025.4mm

- 678.4 mm

- 860 mm

- C 111

- 51.8° (2·B1)

- 26.8° (2·B2)

- 1704.1 mm

**Schematic diagram of both crystals during operation with a nominal **
**take-off angle (2θ) of 26° ~ 52° from the centerline**

## 12-ID-B Beamline with a large offset Monochromator

***12-ID-B Beamline with a large offset Monochromator***

| Parameters | Value |
| --- | --- |
| Energy range (keV) for FOE monochromator | 6.9 ~ 13.0 (Diamond111) |
| Resolution E/E | 1 x 10-4 |
| Flux (photon/mm2/sec) | 1 x 1013 @10 keV |
| Beam size (horiz x vert), unfocused  | 1 mm x 1 mm |

- January 2008 – Accepted bid from ACCEL for $550.2K
- Ordered May 2008 $600K

## New 

**New **
**Mini-hutch**
**Ordered -**
**Installed**
**Sep 08**

## New 

**USAXS**
**Mirrors**

**Vertical**
**Mirror**

**New **
**Mini-hutch**

## B

**B**

**C**

**D**

- SAXS Chamber

- USAXS

- TRSAXS

- Huber

- MOCVD

## Proposed 12-ID Beamlines

***Proposed 12-ID Beamlines***

- B Branch

- C/D Branch

- D

- C

## Slide 16

## Slide 17

##  Air Handling

*** ******Air Handling***

- The hutches will be connected directly to the air system to maintain a more constant temperature.
- It has been observed that the 12-ID-C and B hutches can become very much warmer than the experimental hall which results in wide temperature swings when the doors are opened.

##  - Vacuum chamber and one shorten Undulator A installed

-  - Vacuum chamber and one shorten Undulator A installed
-   and some canted front end parts ordered
- 2007 - Funding for mini-hutch and remaining canted front end parts
- 		PDR approved for mini-hutch
- 2008 – Order large offset mono
- 		September long shutdown
- 			Construction of mini-hutch
- 			Installation of canted front end
- 			Installation of second undulator (U30s in-line)
- 2009 – May Shutdown Installations (depending on funding)
- 		Cant the two undulators
- 		Large offset mono
- 		SAXS vacuum chamber in 12-ID-B

## 12 –ID Horizontal Mirror

***12 –ID Horizontal Mirror***

- In April 2006 the mirror overheated to 190 C when the cooling water was turned off but the heaters remained on(heaters are used to focus the beam).  Indium metal (mp 157 C) which is which is used to ensure contact with the copper cooling blocks and the heaters melted.  From visual inspection the mirror appeared to be free of metal particles
- However, there appeared to be some degradation in performance.
- Over this long shut-down the mirror has been removed, inspected and characterized for slope error and roughness.
- A roughness on average of 5 A  was measured
- The mirror is being re-installed

## Slide 21

## 12 -ID Upgrade to Two Beamlines with Canted Undulators

***12 -ID Upgrade to Two Beamlines with Canted Undulators***

- APS Strategic Plan calls for 12-ID to become a dedicated Small angle X-ray scattering (SAXS) facility.
- The 12-ID SAXS facility (FY 1996 DOE Scientific Facilities Initiative)  is 50% of the GUP beamtime with x2 oversubscription.
- SAXS publications - 124 and users - 291
- The increasing demand for SAXS beam time has been driven by:
- Research into the structure and dynamics of nanoscale materials
- Increased interest in soft matter
- Time-dependent structural investigations
- Plan was endorsed by the SAC review of Sector 12 in March, 2005

## Ancillary Equipment

***Ancillary Equipment***

- Flow cells, stop flow capability
- Environmental control (heating, cooling) for in situ experiments
- Sample changers for high throughput experiments
- Gas flow control system for multiple and reactive gases
- Other complementary techniques such as mass spectrometry