NHMFL-PFF Strategic Plans:

Achieving 100 T

Chuck MielkeDirector of the NHMFL-PFF

Where are we today• 85 T Operations user program

– World Leading and Unique User Environment– Currently executing our second call of proposals

• Set World Record for non-destructive high field (89 Tesla)• Have the Worlds largest (electrical) Pulsed Power System

– 1.4 GVA Has Enabled the Only Reliable Fields > 80T• +600 MJ pulse capacity • use 140 MJ for the 85 T magnet outsert

• Have established a world leading competency in Fermi Surface Topology using all NHMFL magnets (especially the 85 T)

Where are we going?

• 100 T • (Operational System Verification)

• Acceptable risk field for user operations– Based on analysis of mechanics at peak field.

(Primarily determined by outsert) • 100 T user operations

How?

• By reducing bore from 15 to 10 mm – Insert delivers 61.3 T by itself– Outsert delivers (37.0 – 3.3) T = 33.7 T

• Same risk to outsert as current 85 T operations

• To reach 100 T outsert must deliver 5 T more• Assess risk of 42 T outsert field

When? (Major Milestones)• 10 mm Insert Cad Design (Done Aug 2011)• 42T outsert Eng. Risk Assessment Nov 30th 2010• 10 mm insert completed by Jan 30th 2011• Test to 95 T or higher (Mar – Apr 2011) • 100 T user operations analysis (June 2011)• Upgrade for 100 T user ops … (2012 – 2014)

– Upgraded outsert and spares (coils 1-4 of the outsert)

Timeline details

20072006 2008 2009

2010 2011

Jul Sep Jan Mar-AprJune 2012 - 2014

Com

mis

sion

ed to

89

T

Firs

t Cal

l Use

r ops

to 8

5 T

Seco

nd C

all U

ser o

ps to

85

T

Repa

ired

Coils

2 &

3 o

n O

utse

rt

ERA

for 4

2T O

utse

rt O

ps

ARRA

Pro

ject

Com

plet

ed

10 m

m T

oolin

g D

esig

n Co

mpl

ete

10 m

m T

oolin

g Co

mpl

ete

10 m

m A

ssem

bly

Com

plet

e

Test

to 9

5 T

+10

0T O

ps A

naly

sis

100

T U

ser O

ps

Inst

all &

Hi-P

ot 1

0 m

m A

ssem

bly

FebAugNov

Oct Dec

Scie

ntist

Hire

EE H

ire

100T Users Call #1

Micro-ca

ntilever m

agnetometry

[quantum m

agnets]

Micro-ca

ntilever m

agnetometry

&

contactl

ess co

nductivit

y [Hg h

igh-T c]

dHvA &

contactl

ess co

nductivit

y

[U-base

d heavy f

ermions]

Magneto-tr

ansport

measurements

LSCO Q

uantum O

scilla

tions

Micro-ca

ntilever m

agnetometry

Quantum O

scilla

tions in doped pnicti

des

Transp

ort in

pnictide su

perconducto

r

measurement o

f upper c

ritica

l fields

HTC Contactl

ess Conducti

vity

Sebasti

an et al. P

NAS

HTC Contactl

ess Conducti

vity

Single

ton et al. P

RL

Performance of 100T Magnet Systems